Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual categoria era o participante/receptor otōto?
 ###Tabelas: CREATE TABLE early_broad_gauge_locomotives_for_all_traffic_types (early_broad_gauge_locomotives_for_all_traffic_types_id AUTO_INCREMENT PRIMARY KEY, Class (old) to 1868 VARCHAR, Railway number(s) VARCHAR, Quantity INT, Year(s) of manufacture VARCHAR, Type VARCHAR) CREATE TABLE list_of_locomotives (list_of_locomotives_id AUTO_INCREMENT PRIMARY KEY, LTSR No. INT, LTSR Name VARCHAR, Builder VARCHAR, Built INT, MR No. INT, LMS 1930 No. INT, BR No. INT, Withdrawn INT) CREATE TABLE current_composition (current_composition_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Rank VARCHAR, Years until mandatory retirement VARCHAR, Appointed by VARCHAR, Year appointed INT) CREATE TABLE film_festivals (film_festivals_id AUTO_INCREMENT PRIMARY KEY, Film Festival VARCHAR, Date of ceremony VARCHAR, Category VARCHAR, Participants/Recipients VARCHAR, Result VARCHAR) CREATE TABLE greco-roman_tradition (greco-roman_tradition_id AUTO_INCREMENT PRIMARY KEY, Day: (see Irregularities ) VARCHAR, Sunday Sōl (Sun) VARCHAR, Monday Luna (Moon) VARCHAR, Tuesday Mars (Mars) VARCHAR, Wednesday Mercurius (Mercury) VARCHAR, Thursday Iuppiter (Jupiter) VARCHAR, Friday Venus (Venus) VARCHAR, Saturday Saturnus ( Saturn) VARCHAR)  
SELECT Category FROM film_festivals WHERE Participants/Recipients = Otōto